Having ebooks at all is a pretty new feature, and their whole thing is being an alternative to Amazon so of course they're not going to want to use Kindle's DRM

Having ebooks at all is a pretty new feature, and their whole thing is being an alternative to Amazon so of course they're not going to want to use Kindle's DRM. That being said, this is a very new product. I would be extremely surprised if they didn't end up adding a search filter for DRM-free ebooks. For now, you could just search for books published by Tor or other publishers that you know don't use DRM.